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  • nonetalaga2
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    can't login to admin after migrating to another server Link to this post

    After Migrating to another server either can't login to admin or after login the error below comes out any solution? Thanks in advance.

    [User Error] singleton() Called without a class
    GET /admin

    Line 258 in /data/13/1/137/157/1300483/user/1392268/htdocs/home/sapphire/core/Core.php
    Source

    249 * data (e.g. the custom SilverStripe static handling).
    250 *
    251 * @uses Object::strong_create()
    252 *
    253 * @param string $className
    254 * @return Object
    255 */
    256 function singleton($className) {
    257    global $_SINGLETONS;
    258    if(!isset($className)) user_error("singleton() Called without a class", E_USER_ERROR);
    259    if(!is_string($className)) user_error("singleton() passed bad class_name: " . var_export($className,true), E_USER_ERROR);
    260    if(!isset($_SINGLETONS[$className])) {
    261     if(!class_exists($className)) user_error("Bad class to singleton() - $className", E_USER_ERROR);
    262       $_SINGLETONS[$className] = Object::strong_create($className,null, true);
    263       if(!$_SINGLETONS[$className]) user_error("singleton() Unknown class '$className'", E_USER_ERROR);
    264    }

    Trace

    * singleton() Called without a class
    Line 258 of Core.php
    * singleton()
    Line 430 of LeftAndMain.php
    * LeftAndMain->MainMenu()
    * call_user_func_array(Array,Array)
    Line 318 of ViewableData.php
    * ViewableData->obj(MainMenu)
    Line 1077 of LeftAndMain.php
    * LeftAndMain->SectionTitle()
    * call_user_func_array(Array,Array)
    Line 408 of ViewableData.php
    * ViewableData->XML_val(SectionTitle,,1)
    Line 20 of .cache.data.13.1.137.157.1300483.user.1392268.htdocs.home.cms.templates.LeftAndMain.ss
    * include(/data/13/1/137/157/1300483/user/1392268/htdocs/home/silverstripe-cache/.cache.data.13.1.137.157.1300483.user.1392268.htdocs.home.cms.templates.LeftAndMain.ss)
    Line 354 of SSViewer.php
    * SSViewer->process(CMSMain)
    Line 175 of Controller.php
    * Controller->handleAction(HTTPRequest)
    Line 129 of RequestHandler.php
    * RequestHandler->handleRequest(HTTPRequest)
    Line 122 of Controller.php
    * Controller->handleRequest(HTTPRequest)
    Line 277 of Director.php
    * Director::handleRequest(HTTPRequest,Session)
    Line 121 of Director.php
    * Director::direct(/admin)
    Line 118 of main.php

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